Post List

  • November 3, 2009
  • 08:00 AM

The danger of restoring native plants using non-local sources

by Rob Goldstein in Conservation Maven

A new study on ecological restoration efforts in Minnesota illustrates the dangers of establishing native plant species using non-local sources.

For the last 30 years, organizations and landowners have been working to restore native vegetation to dunes at Park Point along the western shore of Lake Superior. At first glance, it might not seem like such a big deal that these projects have been planting American beachgrass in Minnesota using propagules from source populations in Michigan.

But........ Read more »

  • November 3, 2009
  • 07:38 AM

More on microRNAs and why cancer spreads

by Avril in Understanding Cancer

This is another geeky post.  If you are currently having treatment for cancer the research described in this post will not alter your treatment as this work is being carried out in cells in a laboratory (and not in people) but it is very interesting and will hopefully be used to design new treatments in [...]... Read more »

Valastyan S, Reinhardt F, Benaich N, Calogrias D, Szász AM, Wang ZC, Brock JE, Richardson AL, & Weinberg RA. (2009) A pleiotropically acting microRNA, miR-31, inhibits breast cancer metastasis. Cell, 137(6), 1032-46. PMID: 19524507  

  • November 3, 2009
  • 07:13 AM

How do birds sense the Earth’s magnetic field?

by Kubke in Building Blogs of Science

If there is a physical property in the world that provides useful information, chances are that at least some animals will have evolved a sensory system to exploit it. The Earth’s magnetic field is no exception: it provides useful and reliable information to navigate the globe. There has been extensive research into whether and how animals may use the magnetic field for navigation, and although most agree that it is being used, the nature of how this information is processed can still be a........ Read more »

Zapka M, Heyers D, Hein CM, Engels S, Schneider NL, Hans J, Weiler S, Dreyer D, Kishkinev D, Wild JM.... (2009) Visual but not trigeminal mediation of magnetic compass information in a migratory bird. Nature, 461(7268), 1274-7. PMID: 19865170  

  • November 3, 2009
  • 07:00 AM

Why So Serious About The Self?

by Shaheen Lakhan in Brain Blogger

You have seen movies in which characters have acted violently. Many times, these characters also have a mental illness. Violence is one common stereotype of psychological disorders, along with rebellion and child-like behavior. In The Dark Knightand Me, Myself, and Irene, a character has multiple personality disorder, which is said to cause demonic or mean [...]... Read more »

  • November 3, 2009
  • 03:57 AM

Supply Chain Flexibility in Strategic Networks

by Jan Husdal in

A supply chain as a virtual enterprise network. That is the underlying reasoning in the 2009 paper How to improve supply chain flexibility using strategic supply chain networks by Herwig Winkler. Virtual Enterprise Networks do not play a major role in this paper, but what fascinates me are (1) the parameters defining supply chain flexibility: Transparency, Simplicity, Responsiveness/Agility and Security/Reliability, and (2) flexibility potentials: Structural, Technological and Human flexibility ........ Read more »

  • November 3, 2009
  • 02:39 AM

Sleep Changes with Aging

by Dr Shock in Dr Shock MD PhD

Aging is associated with well described changing in sleep patterns.

Total sleep time decreases, elderly sleep less
It takes longer before falling a sleep
Elderly go to bed earlier and they awake earlier
There sleep architecture has changed, the slow wave sleep on EEG is reduced, REM sleep is reduced
They’re easier aroused from sleep
They sleep fragmented with many arousals
Daytime [...]

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Related posts brought to you by Yet Another Related Posts Plugin.... Read more »

Wolkove, N., Elkholy, O., Baltzan, M., & Palayew, M. (2007) Sleep and aging: 1. Sleep disorders commonly found in older people. Canadian Medical Association Journal, 176(9), 1299-1304. DOI: 10.1503/cmaj.060792  

Wolkove, N., Elkholy, O., Baltzan, M., & Palayew, M. (2007) Sleep and aging: 2. Management of sleep disorders in older people. Canadian Medical Association Journal, 176(10), 1449-1454. DOI: 10.1503/cmaj.070335  

  • November 2, 2009
  • 08:37 PM

Hot News: Curry, Curcumin, Cancer & Cure

by Laika in Laika's Medliblog

*Hot* News via Twitter and various news media a few days ago. Big headlines tell the following in respectively The Sun, Herald, Ireland, BBC News / NHS Health and Reuters:
Curry is a ‘cure for cancer‘
Spices in curry may help cure cancer
Curry spice ‘kills cancer cells‘
Scientists say curry compound kills cancer cells
The message of these headlines [...]... Read more »

  • November 2, 2009
  • 06:44 PM

Frog Fiction?

by Journal Watch Online in Journal Watch Online

Amphibians may not be ‘canaries in a coal mine’ after all

... Read more »

  • November 2, 2009
  • 05:30 PM

Being older is a good defense against 2009 H1N1 influenza virus

by Vincent Racaniello in virology blog

Why is the incidence of infection with 2009 H1N1 influenza highest among 5-24 year olds, and lowest in those over 65 years of age? Were the oldsters previously infected with a related influenza virus, or is there another explanation?... Read more »

  • November 2, 2009
  • 05:05 PM

A layman’s experience of CJD research

by Brian Appleby in CJD Blogger

I happened across a nice little editorial that was published last year in the British Medical Journal that I am saddened to have not seen sooner.  It is a piece written by a father of a 25-year-old who died of variant Creutzfeldt-Jakob disease (vCJD).  In this short piece, he describes his experience of being involved in several advisory committees on the treatment of human prion diseases as a layperson.  I would like to highlight a few of his comments. First, he was surprised to........ Read more »

  • November 2, 2009
  • 01:54 PM

Sans Fards

by Wayne Hooke in The Psychology of Beauty

French Elle’s April 2009 edition highlighted make-up free beauty. Given the social effects of the “perfectly” beautiful images in contemporary media, Elle’s edition is noteworthy. Three covers were used – the crop below right is of the one featuring Monica Bellucci. The photo above right is from Wikipedia Commons – showing Ms. Bellucci in make-up. [...]... Read more »

  • November 2, 2009
  • 01:31 PM

Fossil Fuels offers Eocene Epoch Beer

by Rachel in The Sage of Discovery: Exploring the world of food one ingredient at a time

In 1995 scientists Raul J. Cano and Monica K. Borucki uncovered endospores from a bacteria related to Bacillus sphaericus, a fungal bacteria, in the stomach of a bee. Endospores are dormant spores, surrounded by a thick protein wall, and created by bacteria in response to environmental stress. In this dormant, dehydrated state, Bacillus endospores can [...]... Read more »

  • November 2, 2009
  • 01:08 PM

Can a Mediterranean diet beat breast cancer?

by David Bradley in SciScoop Science Forum

Valery Fortie is the National Awareness Coordinator of, a directory of news source focused on healthy
eating habits. The author suggests that the Mediterranean Diet can help ward off many diseases and illnesses.
One of those serious and potentially life threatening diseases is breast
cancer. With a risk of one in seven people developing breast cancer in
their lifetime, [...]... Read more »

Cottet, V., Touvier, M., Fournier, A., Touillaud, M., Lafay, L., Clavel-Chapelon, F., & Boutron-Ruault, M. (2009) Postmenopausal Breast Cancer Risk and Dietary Patterns in the E3N-EPIC Prospective Cohort Study. American Journal of Epidemiology, 170(10), 1257-1267. DOI: 10.1093/aje/kwp257  

  • November 2, 2009
  • 01:05 PM

Socializing online shopping

by David Bradley in Sciencetext

People rarely go shopping together online. Okay, occasionally I’ll show my wife that I can buy some item or other we need cheaper online than at the mall, but that’s usually just to save the car journey.
Online shopping is essentially a solo occupation, as are many other internet activities. Fundamentally, there is none of the [...]Post from: David Bradley's Sciencetext Tech TalkSocializing online shopping
... Read more »

Khaled Hassanein, Milena Head, & Chunhua Ju. (2009) A cross-cultural comparison of the impact of Social Presence on website trust, usefulness and enjoyment. Int. J. Electronic Business, 7(6), 625-641. info:/

  • November 2, 2009
  • 12:52 PM

Real vs Placebo Coffee

by Neuroskeptic in Neuroskeptic

Coffee contains caffeine, and as everyone knows, caffeine is a stimulant. We all know how a good cup of coffee wakes you up, makes you more alert, and helps you concentrate - thanks to caffeine.Or does it? Are the benefits of coffee really due to the caffeine, or are there placebo effects at work? Numerous experiments have tried to answer this question, but a paper published today goes into more detail than most. (It caught my eye just as I was taking my first sip this morning, so I had to blog ........ Read more »

  • November 2, 2009
  • 11:45 AM

Are Podcasts The Cure For Obesity?

by Travis Saunders, MSc in Obesity Panacea

I came across a very cool study last week which was published in the latest issue of the American Journal of Preventive Medicine. In this new paper, Dr Gabrielle Turner-McGrievy and colleagues at the University of North Carolina at Chapel Hill examined the impact of listening to a weight-loss podcast on body weight, physical activity, and fruit and vegetable consumption in overweight men and women. Subjects were randomly allocated to one of two groups; the control group which received a popular ........ Read more »

Turner-McGrievy, G., Campbell, M., Tate, D., Truesdale, K., Bowling, J., & Crosby, L. (2009) Pounds Off Digitally StudyA Randomized Podcasting Weight-Loss Intervention. American Journal of Preventive Medicine, 37(4), 263-269. DOI: 10.1016/j.amepre.2009.06.010  

  • November 2, 2009
  • 10:37 AM

Question: Is Competition in Science a Good Thing?

by Jon Klar in The Enlightenment 2.0

It is widely accepted that competition is a driving force of progress.  This is a tenant that our country was built around, and it seems to work pretty well.  Whoever can do something the best will profit from it the most.  There is no one to hold your hand through inferior work.  It is a [...]... Read more »

Schofield, P., Bubela, T., Weaver, T., Portilla, L., Brown, S., Hancock, J., Einhorn, D., Tocchini-Valentini, G., Hrabe de Angelis, M., & Rosenthal, N. (2009) Post-publication sharing of data and tools. Nature, 461(7261), 171-173. DOI: 10.1038/461171a  

  • November 2, 2009
  • 10:14 AM

Science of Speed Dating - Part 3

by Daniel Hawes in Ingenious Monkey | 20-two-5

Mimicking behavior makes women appear physically more attractive to men.... Read more »

  • November 2, 2009
  • 08:30 AM

Coyotes in Chicago: conflict or coexistence?

by Rob Goldstein in Conservation Maven

For the people of Chicago, a new study should ease their fears somewhat about the packs of coyotes that roam their city. ... Read more »

  • November 2, 2009
  • 07:47 AM

Hi... come here often?

by Atila in Brazillion Thoughts

The dating game is cruel. It can be poetic like in sea dragons or it can be lethal like in the spider on the left but, in general, it is not easy.

If the male of the Australian redback spider Latrodectus hasselti doesn't try hard enough, he is immediately killed by the female he was trying to impress. Jeffrey Stoltz and Maydianne Andrade, from the University of Toronto Scarborough, in Canada, showed that the maiden demands at least 100 minutes of display (I saw the news here). If the suitor fai........ Read more »

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